Muhammad ibn Ali ibn Mahbub from Muhammad ibn Al-Husayn from Safwan from Al-Ala' from Muhammad from one of the two (Imams عليه السلام), peace be upon them, who said: I said to Imam عليه السلام: “A man who is accustomed to standing for the night prayer, a night, two nights, or three pass and he does not stand; is it more beloved to you that he performs the witr prayer early at the beginning of the night, or that he makes it up?” Imam عليه السلام said: "No, rather he should make it up, even if it is for thirty nights."